@article{0505d413e8d54ea4b50cbb3193398246,
title = "An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China",
abstract = "Responding to an outbreak of a novel coronavirus [agent of coronavirus disease 2019 (COVID-19)] in December 2019, China banned travel to and from Wuhan city on 23 January 2020 and implemented a national emergency response. We investigated the spread and control of COVID-19 using a data set that included case reports, human movement, and public health interventions. The Wuhan shutdown was associated with the delayed arrival of COVID-19 in other cities by 2.91 days. Cities that implemented control measures preemptively reported fewer cases on average (13.0) in the first week of their outbreaks compared with cities that started control later (20.6). Suspending intracity public transport, closing entertainment venues, and banning public gatherings were associated with reductions in case incidence. The national emergency response appears to have delayed the growth and limited the size of the COVID-19 epidemic in China, averting hundreds of thousands of cases by 19 February (day 50).",
author = "Huaiyu Tian and Yonghong Liu and Yidan Li and Wu, {Chieh Hsi} and Bin Chen and Kraemer, {Moritz U.G.} and Bingying Li and Jun Cai and Bo Xu and Qiqi Yang and Ben Wang and Peng Yang and Yujun Cui and Yimeng Song and Pai Zheng and Quanyi Wang and Bjornstad, {Ottar N.} and Ruifu Yang and Grenfell, {Bryan T.} and Pybus, {Oliver G.} and Christopher Dye",
note = "Funding Information: We thank the thousands of Centers for Disease Control (CDC) staff and local health workers in China who collected data and continue to work to contain COVID-19 in China and elsewhere. This study was provided by the National Natural Science Foundation of China (81673234), Beijing Natural Science Foundation (JQ18025), Beijing Advanced Innovation Program for Land Surface Science, and Young Elite Scientist Sponsorship Program by CAST (YESS) (2018QNRC001). H.T., M.U.G.K., O.G.P., and C.D. acknowledge support from the Oxford Martin School; H.T. acknowledges support from the Military Logistics Research Program. The funders had no role in study design, data collection and analysis, the decision to publish, or in preparation of the manuscript. Publisher Copyright: Copyright {\textcopyright} 2020 The Authors,",
year = "2020",
month = may,
day = "8",
doi = "10.1126/science.abb6105",
language = "English (US)",
volume = "368",
pages = "638--642",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6491",
}